28887377 has 8 divisors (see below), whose sum is σ = 29408640. Its totient is φ = 28370160.

The previous prime is 28887373. The next prime is 28887389. The reversal of 28887377 is 77378882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28887377 - 2² = 28887373 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28887373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15803 + ... + 17535.

It is an arithmetic number, because the mean of its divisors is an integer number (3676080).

Almost surely, 2^28887377 is an apocalyptic number.

It is an amenable number.

28887377 is a deficient number, since it is larger than the sum of its proper divisors (521263).

28887377 is a wasteful number, since it uses less digits than its factorization.

28887377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023.

The product of its digits is 1053696, while the sum is 50.

The square root of 28887377 is about 5374.6978519727. The cubic root of 28887377 is about 306.8334498936.

The spelling of 28887377 in words is "twenty-eight million, eight hundred eighty-seven thousand, three hundred seventy-seven".